The Kibo+ is the standard Kibo with a few extras. These include the XT crankset, XT hubs, and XT V-brakes, Microshift shifters etc 

As with the Kibo, the frame can be made for an ahead stem or quill stem. The quill uses a 1" threaded steerer and the ahead a 1 1/8" threadless steerer. 

For more info click on the links below